|
|
|
| Canonical Correspondence between Phytoplankton Community and Environmental Factors in the Mainstream of Haihe River |
| ZHANG Ping,LI Baohua,LIU Xianbin,BAI Ming,WANG Juanjuan,WANG Xiuqin,WANG Dexing,SHI Wenbo |
|
|
|
|
Abstract The phytoplankton community in mainstream of Haihe River was investigated in late spring , mid‐summer and early autumn from 2009 to 2013 ,and 8 phyla ,92 genera and 181 species of phytoplankton were detected in the waters .The phytoplankton was found to be predomninantly composed of Cyanophyta , Bacillariophyta and Chlorophyta ,including Scenedesmus quadricauda ,Chlorella vulgaris ,Oocystis sp ., Selenastrum sp .,and Caeteria sp in Chlorophyta ;Microcystis sp ., Phormidium tenue , Spirulina sp ., Oscillatoria sp .,and Dactylococcopsis sp .in Cyanophyta;Cyclotella sp .,Nitzschia sp .,Navicula sp .in Bacillariophyta and Cryptomonas erosa ,C .ovata in Cryptophyta .The relationships between the distribution of phytoplankton and environmental factors in each sampling site were studied by canonical correspondence analysis .The 5 year observation demonstrated that total nitrogen ,total phosphorus and pH were the key factors for the distribution of phytoplankton communities .
|
|
Received: 25 June 2015
|
|
|
|
|
|
|
